42-329-42212

PRODUCING

WILLIS 40B

MIDLAND County · District 8 · OXYROCK OPERATING LLC · SPRABERRY (TREND AREA)

Permits

1

Max Depth

12,000 ft

First Permit

2018-01-19

Latest Activity

2018-01-19

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2018-07-19

Shut-In

Plugged

P-5 Org Status: X

!

EWA / Permit operator mismatch

Scheduling: OXYROCK OPERATING LLC ≠ Permit: CROWNQUEST OPERATING, LLC

Resolved via: productionOXYROCK OPERATING, LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2018-03

Last Production

2026-07

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (10) Elevation 2,712 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 2,524 ft+188 ft
GRAYBURG 4,206 ft-1,494 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,785 ft-2,073 ft
GLORIETA 5,591 ft-2,879 ft
CLEARFORK (Clear Fork)6,580 ft-3,868 ft
SPRABERRY 7,417 ft-4,705 ft
SPRABERRY UPPER-DEAN (Spraberry)8,790 ft-6,078 ft
QUEEN
SANTA ROSA
SEVEN RIVERS

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
42-329-41969 WILLIS 40B · CROWNQUEST OPERATING, LLC
0.3 mi
Yates 2,516'Grayburg 4,224'San Andres 4,800'Santa Rosa Pennsylvanian Queen Fusselman Ellenburger Canyon Seven Rivers
42-329-42216 WILLIS 40B · CROWNQUEST OPERATING, LLC
0.4 mi
Yates 2,521'Grayburg 4,164'San Andres 4,742'Glorieta 5,571'Clear Fork 6,557'Spraberry 7,400'Spraberry 8,771'Queen Seven Rivers Santa Rosa
42-329-42220 WILLIS 40B · CROWNQUEST OPERATING, LLC
0.4 mi
Yates 2,508'Grayburg 4,199'San Andres 4,564'Glorieta 5,578'Spraberry 7,398'Spraberry 8,778'Seven Rivers Queen Santa Rosa Clear Fork
42-329-42741 HORTON '40' · MID-STATES OPERATING COMPANY
0.7 mi
Santa Rosa 1,000'Yates 2,496'Seven Rivers 2,828'Queen 3,585'Grayburg 4,185'San Andres 4,276'Spraberry Clear Fork Glorieta Spraberry
42-329-44176 HERON EAST 45 · DE3 OPERATING LLC
1.3 mi
Santa Rosa 1,000'Rustler 1,585'Yates 2,475'Seven Rivers 2,738'Queen 3,391'Grayburg 4,014'San Andres 4,298'San Andres 4,298'Glorieta 5,483'Clear Fork 6,475'Spraberry 7,318'
42-329-42940 DONOVAN C · DE3 OPERATING LLC
1.4 mi
Santa Rosa 1,000'Seven Rivers 1,300'Yates 2,445'Queen 3,700'Grayburg 4,023'San Andres 4,300'Glorieta 5,517'Clear Fork 6,568'Spraberry 7,391'Spraberry 8,777'
42-329-45098 FRANKLIN CRAWFORD 42-43 A · ENDEAVOR ENERGY RESOURCES L.P.
1.4 mi
Santa Rosa 900'Rustler 1,570'Rustler 1,615'Yates 2,400'Seven Rivers 2,880'Seven Rivers 2,900'Queen 3,660'Queen 3,700'Grayburg 3,818'San Andres 4,451'Glorieta 5,252'Clear Fork 6,669' +2 more
42-329-45099 FRANKLIN CRAWFORD 42-43 C · ENDEAVOR ENERGY RESOURCES L.P.
1.4 mi
Santa Rosa 900'Santa Rosa 1,000'Rustler 1,570'Rustler 1,615'Yates 2,400'Seven Rivers 2,880'Seven Rivers 2,900'Queen 3,660'Queen 3,700'Grayburg 3,818'Grayburg 3,819'San Andres 4,481' +3 more

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (1)

IntervalType
8,218–11,561 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"334 ft375 sx
8.625"5,610 ft1,225 sx
5.5"11,665 ft1,050 sx

Permit History (1)

Applications (1)

#835013 A CROWNQUEST OPERATING, LLC
received 2018-01-10

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2019-01-10 log on file

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

Lat 31.874653
Lon -101.933578

Well Details

Well Number
6
Max Depth
12,000 ft
Drill Type
Vertical
County
MIDLAND
District
8
Completed
2018-07-19

Operator

Location
HOUSTON
P-5 Status
X (filed 2026-04-22)
Cum Oil (all leases)
64,850,483 bbl
Cum Gas (all leases)
77,830 mcf
Activities
OPRS/G, OPRS/O
Total Permits
364